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Statistical comparison of excellent and good improvements in cross over cases in both arms.
| Improvement | Iontophoresis to Botox | Botox to iontophoresis |
|---|---|---|
| Excellent | 12 (75.0%) | 1 (16.7%) |
| Good | 0 | 0 |
| Not improved | 4 (25.0%) | 5 (83.3%) |
| Total | 16 (100.0%) | 6 (100.0%) |
| Inference | Excellent improvement is statistically associated with botulinum toxin with P = 0.077+ | |
